<?php
/**
 * Edit Tags Administration Screen.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** WordPress Administration Bootstrap */
require_once('./admin.php');

if ( ! $taxnow )
	wp_die( __( 'Invalid taxonomy' ) );

$tax = get_taxonomy( $taxnow );

if ( ! $tax )
	wp_die( __( 'Invalid taxonomy' ) );

if ( ! current_user_can( $tax->cap->manage_terms ) )
	wp_die( __( 'Cheatin&#8217; uh?' ) );

$wp_list_table = _get_list_table('WP_Terms_List_Table');
$pagenum = $wp_list_table->get_pagenum();

$title = $tax->labels->name;

if ( 'post' != $post_type ) {
	$parent_file = "edit.php?post_type=$post_type";
	$submenu_file = "edit-tags.php?taxonomy=$taxonomy&amp;post_type=$post_type";
} else if ( 'link_category' == $tax->name ) {
	$parent_file = 'link-manager.php';
	$submenu_file = 'edit-tags.php?taxonomy=link_category';
} else {
	$parent_file = 'edit.php';
	$submenu_file = "edit-tags.php?taxonomy=$taxonomy";
}

add_screen_option( 'per_page', array('label' => $title, 'default' => 20, 'option' => 'edit_' . $tax->name . '_per_page') );

switch ( $wp_list_table->current_action() ) {

	case 'add-tag':

		check_admin_referer( 'add-tag', '_wpnonce_add-tag' );

		if ( !current_user_can( $tax->cap->edit_terms ) )
			wp_die( __( 'Cheatin&#8217; uh?' ) );

		$ret = wp_insert_term( $_POST['tag-name'], $taxonomy, $_POST );
		$location = 'edit-tags.php?taxonomy=' . $taxonomy;
		if ( 'post' != $post_type )
			$location .= '&post_type=' . $post_type;

		if ( $referer = wp_get_original_referer() ) {
			if ( false !== strpos( $referer, 'edit-tags.php' ) )
				$location = $referer;
		}

		if ( $ret && !is_wp_error( $ret ) )
			$location = add_query_arg( 'message', 1, $location );
		else
			$location = add_query_arg( 'message', 4, $location );
		wp_redirect( $location );
		exit;
		break;

	case 'delete':
		$location = 'edit-tags.php?taxonomy=' . $taxonomy;
		if ( 'post' != $post_type )
			$location .= '&post_type=' . $post_type;
		if ( $referer = wp_get_referer() ) {
			if ( false !== strpos( $referer, 'edit-tags.php' ) )
				$location = $referer;
		}

		if ( !isset( $_REQUEST['tag_ID'] ) ) {
			wp_redirect( $location );
			exit;
		}

		$tag_ID = (int) $_REQUEST['tag_ID'];
		check_admin_referer( 'delete-tag_' .  $tag_ID );

		if ( !current_user_can( $tax->cap->delete_terms ) )
			wp_die( __( 'Cheatin&#8217; uh?' ) );

		wp_delete_term( $tag_ID, $taxonomy );

		$location = add_query_arg( 'message', 2, $location );
		wp_redirect( $location );
		exit;

		break;

	case 'bulk-delete':
		check_admin_referer( 'bulk-tags' );

		if ( !current_user_can( $tax->cap->delete_terms ) )
			wp_die( __( 'Cheatin&#8217; uh?' ) );

		$tags = (array) $_REQUEST['delete_tags'];
		foreach ( $tags as $tag_ID ) {
			wp_delete_term( $tag_ID, $taxonomy );
		}

		$location = 'edit-tags.php?taxonomy=' . $taxonomy;
		if ( 'post' != $post_type )
			$location .= '&post_type=' . $post_type;
		if ( $referer = wp_get_referer() ) {
			if ( false !== strpos( $referer, 'edit-tags.php' ) )
				$location = $referer;
		}

		$location = add_query_arg( 'message', 6, $location );
		wp_redirect( $location );
		exit;

		break;

	case 'edit':
		$title = $tax->labels->edit_item;

		$tag_ID = (int) $_REQUEST['tag_ID'];

		$tag = get_term( $tag_ID, $taxonomy, OBJECT, 'edit' );
		if ( ! $tag )
			wp_die( __( 'You attempted to edit an item that doesn&#8217;t exist. Perhaps it was deleted?' ) );
		require_once ( 'admin-header.php' );
		include( './edit-tag-form.php' );

		break;

	case 'editedtag':
		$tag_ID = (int) $_POST['tag_ID'];
		check_admin_referer( 'update-tag_' . $tag_ID );

		if ( !current_user_can( $tax->cap->edit_terms ) )
			wp_die( __( 'Cheatin&#8217; uh?' ) );

		$tag = get_term( $tag_ID, $taxonomy );
		if ( ! $tag )
			wp_die( __( 'You attempted to edit an item that doesn&#8217;t exist. Perhaps it was deleted?' ) );

		$ret = wp_update_term( $tag_ID, $taxonomy, $_POST );

		$location = 'edit-tags.php?taxonomy=' . $taxonomy;
		if ( 'post' != $post_type )
			$location .= '&post_type=' . $post_type;

		if ( $referer = wp_get_original_referer() ) {
			if ( false !== strpos( $referer, 'edit-tags.php' ) )
				$location = $referer;
		}

		if ( $ret && !is_wp_error( $ret ) )
			$location = add_query_arg( 'message', 3, $location );
		else
			$location = add_query_arg( 'message', 5, $location );

		wp_redirect( $location );
		exit;
		break;

	default:
		if ( ! empty($_REQUEST['_wp_http_referer']) ) {
			$location = remove_query_arg( array('_wp_http_referer', '_wpnonce'), stripslashes($_SERVER['REQUEST_URI']) );

			if ( ! empty( $_REQUEST['paged'] ) )
				$location = add_query_arg( 'paged', (int) $_REQUEST['paged'] );

			wp_redirect( $location );
			exit;
		}

		$wp_list_table->prepare_items();
		$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );

		if ( $pagenum > $total_pages && $total_pages > 0 ) {
			wp_redirect( add_query_arg( 'paged', $total_pages ) );
			exit;
		}

		wp_enqueue_script('admin-tags');
		if ( current_user_can($tax->cap->edit_terms) )
			wp_enqueue_script('inline-edit-tax');

		if ( 'category' == $taxonomy || 'link_category' == $taxonomy || 'post_tag' == $taxonomy  ) {
			$help ='';
			if ( 'category' == $taxonomy )
				$help = '<p>' . sprintf(__( 'You can use categories to define sections of your site and group related posts. The default category is &#8220;Uncategorized&#8221; until you change it in your <a href="%s">writing settings</a>.' ) , 'options-writing.php' ) . '</p>';
			elseif ( 'link_category' == $taxonomy )
			$help = '<p>' . __( 'You can create groups of links by using Link Categories. Link Category names must be unique and Link Categories are separate from the categories you use for posts.' ) . '</p>';
			else
				$help = '<p>' . __( 'You can assign keywords to your posts using <strong>tags</strong>. Unlike categories, tags have no hierarchy, meaning there&#8217;s no relationship from one tag to another.' ) . '</p>';

			if ( 'link_category' == $taxonomy )
				$help .= '<p>' . __( 'You can delete Link Categories in the Bulk Action pulldown, but that action does not delete the links within the category. Instead, it moves them to the default Link Category.' ) . '</p>';
			else
				$help .='<p>' . __( 'What&#8217;s the difference between categories and tags? Normally, tags are ad-hoc keywords that identify important information in your post (names, subjects, etc) that may or may not recur in other posts, while categories are pre-determined sections. If you think of your site like a book, the categories are like the Table of Contents and the tags are like the terms in the index.' ) . '</p>';

			get_current_screen()->add_help_tab( array(
					'id'      => 'overview',
					'title'   => __('Overview'),
					'content' => $help,
			) );

			if ( 'category' == $taxonomy || 'post_tag' == $taxonomy ) {
				if ( 'category' == $taxonomy )
					$help = '<p>' . __( 'When adding a new category on this screen, you&#8217;ll fill in the following fields:' ) . '</p>';
				else
					$help = '<p>' . __( 'When adding a new tag on this screen, you&#8217;ll fill in the following fields:' ) . '</p>';

				$help .= '<ul>' .
						'<li>' . __( '<strong>Name</strong> - The name is how it appears on your site.' ) . '</li>';

				if ( ! global_terms_enabled() )
					$help .= '<li>' . __( '<strong>Slug</strong> - The &#8220;slug&#8221; is the URL-friendly version of the name. It is usually all lowercase and contains only letters, numbers, and hyphens.' ) . '</li>';

				if ( 'category' == $taxonomy )
					$help .= '<li>' . __( '<strong>Parent</strong> - Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional. To create a subcategory, just choose another category from the Parent dropdown.' ) . '</li>';

				$help .= '<li>' . __( '<strong>Description</strong> - The description is not prominent by default; however, some themes may display it.' ) . '</li>' .
						'</ul>' .
						'<p>' . __( 'You can change the display of this screen using the Screen Options tab to set how many items are displayed per screen and to display/hide columns in the table.' ) . '</p>';

				get_current_screen()->add_help_tab( array(
						'id'      => 'adding-terms',
						'title'   => 'category' == $taxonomy ? __( 'Adding Categories' ) : __( 'Adding Tags' ),
						'content' => $help,
				) );
			}

			$help = '<p><strong>' . __( 'For more information:' ) . '</strong></p>';

			if ( 'category' == $taxonomy )
				$help .= '<p>' . __( '<a href="http://codex.wordpress.org/Posts_Categories_Screen" target="_blank">Documentation on Categories</a>' ) . '</p>';
			elseif ( 'link_category' == $taxonomy )
			$help .= '<p>' . __( '<a href="http://codex.wordpress.org/Links_Link_Categories_Screen" target="_blank">Documentation on Link Categories</a>' ) . '</p>';
			else
				$help .= '<p>' . __( '<a href="http://codex.wordpress.org/Posts_Tags_Screen" target="_blank">Documentation on Tags</a>' ) . '</p>';

			$help .= '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>';

			get_current_screen()->set_help_sidebar( $help );

			unset( $help );
		}

		require_once ('admin-header.php');

		if ( !current_user_can($tax->cap->edit_terms) )
			wp_die( __('You are not allowed to edit this item.') );

		$messages[1] = __('Item added.');
		$messages[2] = __('Item deleted.');
		$messages[3] = __('Item updated.');
		$messages[4] = __('Item not added.');
		$messages[5] = __('Item not updated.');
		$messages[6] = __('Items deleted.');

		?>

<div class="wrap nosubsub">
	<?php screen_icon(); ?>
	<h2>
		<?php echo esc_html( $title );
		if ( !empty($_REQUEST['s']) )
	printf( '<span class="subtitle">' . __('Search results for &#8220;%s&#8221;') . '</span>', esc_html( stripslashes($_REQUEST['s']) ) ); ?>
	</h2>

	<?php if ( isset($_REQUEST['message']) && ( $msg = (int) $_REQUEST['message'] ) ) : ?>
	<div id="message" class="updated">
		<p>
			<?php echo $messages[$msg]; ?>
		</p>
	</div>
	<?php $_SERVER['REQUEST_URI'] = remove_query_arg(array('message'), $_SERVER['REQUEST_URI']);
endif; ?>
	<div id="ajax-response"></div>

	<form class="search-form" action="" method="get">
		<input type="hidden" name="taxonomy"
			value="<?php echo esc_attr($taxonomy); ?>" /> <input type="hidden"
			name="post_type" value="<?php echo esc_attr($post_type); ?>" />

		<?php $wp_list_table->search_box( $tax->labels->search_items, 'tag' ); ?>

	</form>
	<br class="clear" />

	<div id="col-container">

		<div id="col-right">
			<div class="col-wrap">
				<form id="posts-filter" action="" method="post">
					<input type="hidden" name="taxonomy"
						value="<?php echo esc_attr($taxonomy); ?>" /> <input type="hidden"
						name="post_type" value="<?php echo esc_attr($post_type); ?>" />

					<?php $wp_list_table->display(); ?>

					<br class="clear" />
				</form>

				<?php if ( 'category' == $taxonomy ) : ?>
				<div class="form-wrap">
					<p>
						<?php printf(__('<strong>Note:</strong><br />Deleting a category does not delete the posts in that category. Instead, posts that were only assigned to the deleted category are set to the category <strong>%s</strong>.'), apply_filters('the_category', get_cat_name(get_option('default_category')))) ?>
					</p>
					<?php if ( current_user_can( 'import' ) ) : ?>
					<p>
						<?php printf(__('Categories can be selectively converted to tags using the <a href="%s">category to tag converter</a>.'), 'import.php') ?>
					</p>
					<?php endif; ?>
				</div>
				<?php elseif ( 'post_tag' == $taxonomy && current_user_can( 'import' ) ) : ?>
				<div class="form-wrap">
					<p>
						<?php printf(__('Tags can be selectively converted to categories using the <a href="%s">tag to category converter</a>'), 'import.php') ;?>
						.
					</p>
				</div>
				<?php endif;
				do_action('after-' . $taxonomy . '-table', $taxonomy);
				?>

			</div>
		</div>
		<!-- /col-right -->

		<div id="col-left">
			<div class="col-wrap">

				<?php

				if ( !is_null( $tax->labels->popular_items ) ) {
					if ( current_user_can( $tax->cap->edit_terms ) )
						$tag_cloud = wp_tag_cloud( array( 'taxonomy' => $taxonomy, 'echo' => false, 'link' => 'edit' ) );
					else
						$tag_cloud = wp_tag_cloud( array( 'taxonomy' => $taxonomy, 'echo' => false ) );

					if ( $tag_cloud ) :
					?>
				<div class="tagcloud">
					<h3>
						<?php echo $tax->labels->popular_items; ?>
					</h3>
					<?php echo $tag_cloud; unset( $tag_cloud ); ?>
				</div>
				<?php
				endif;
				}

				if ( current_user_can($tax->cap->edit_terms) ) {
					// Back compat hooks. Deprecated in preference to {$taxonomy}_pre_add_form
					if ( 'category' == $taxonomy )
						do_action('add_category_form_pre', (object)array('parent' => 0) );
					elseif ( 'link_category' == $taxonomy )
					do_action('add_link_category_form_pre', (object)array('parent' => 0) );
					else
						do_action('add_tag_form_pre', $taxonomy);

					do_action($taxonomy . '_pre_add_form', $taxonomy);
					?>

				<div class="form-wrap">
					<h3>
						<?php echo $tax->labels->add_new_item; ?>
					</h3>
					<form id="addtag" method="post" action="edit-tags.php"
						class="validate">
						<input type="hidden" name="action" value="add-tag" /> <input
							type="hidden" name="screen"
							value="<?php echo esc_attr($current_screen->id); ?>" /> <input
							type="hidden" name="taxonomy"
							value="<?php echo esc_attr($taxonomy); ?>" /> <input
							type="hidden" name="post_type"
							value="<?php echo esc_attr($post_type); ?>" />
						<?php wp_nonce_field('add-tag', '_wpnonce_add-tag'); ?>

						<div class="form-field form-required">
							<label for="tag-name"><?php _ex('Name', 'Taxonomy Name'); ?> </label>
							<input name="tag-name" id="tag-name" type="text" value=""
								size="40" aria-required="true" />
							<p>
								<?php _e('The name is how it appears on your site.'); ?>
							</p>
						</div>
						<?php if ( ! global_terms_enabled() ) : ?>
						<div class="form-field">
							<label for="tag-slug"><?php _ex('Slug', 'Taxonomy Slug'); ?> </label>
							<input name="slug" id="tag-slug" type="text" value="" size="40" />
							<p>
								<?php _e('The &#8220;slug&#8221; is the URL-friendly version of the name. It is usually all lowercase and contains only letters, numbers, and hyphens.'); ?>
							</p>
						</div>
						<?php endif; // global_terms_enabled() ?>
						<?php if ( is_taxonomy_hierarchical($taxonomy) ) : ?>
						<div class="form-field">
							<label for="parent"><?php _ex('Parent', 'Taxonomy Parent'); ?> </label>
							<?php wp_dropdown_categories(array('hide_empty' => 0, 'hide_if_empty' => false, 'taxonomy' => $taxonomy, 'name' => 'parent', 'orderby' => 'name', 'hierarchical' => true, 'show_option_none' => __('None'))); ?>
							<?php if ( 'category' == $taxonomy ) : // @todo: Generic text for hierarchical taxonomies ?>
							<p>
								<?php _e('Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional.'); ?>
							</p>
							<?php endif; ?>
						</div>
						<?php endif; // is_taxonomy_hierarchical() ?>
						<div class="form-field">
							<label for="tag-description"><?php _ex('Description', 'Taxonomy Description'); ?>
							</label>
							<textarea name="description" id="tag-description" rows="5"
								cols="40"></textarea>
							<p>
								<?php _e('The description is not prominent by default; however, some themes may show it.'); ?>
							</p>
						</div>

						<?php
						if ( ! is_taxonomy_hierarchical($taxonomy) )
							do_action('add_tag_form_fields', $taxonomy);
						do_action($taxonomy . '_add_form_fields', $taxonomy);

						submit_button( $tax->labels->add_new_item, 'button' );

						// Back compat hooks. Deprecated in preference to {$taxonomy}_add_form
						if ( 'category' == $taxonomy )
							do_action('edit_category_form', (object)array('parent' => 0) );
						elseif ( 'link_category' == $taxonomy )
						do_action('edit_link_category_form', (object)array('parent' => 0) );
						else
							do_action('add_tag_form', $taxonomy);

						do_action($taxonomy . '_add_form', $taxonomy);
						?>
					</form>
				</div>
				<?php } ?>

			</div>
		</div>
		<!-- /col-left -->

	</div>
	<!-- /col-container -->
</div>
<!-- /wrap -->

<?php $wp_list_table->inline_edit(); ?>

<?php
break;
}

include('./admin-footer.php');

?>
